Combined tricycle trailer and backrest-hitch



FIG. 1 is a top plan view of a combined tricycle trailer and backrest-hitch showing my new design;

FIG. 2 is an exploded side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left rear perspective view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a combined tricycle trailer and backrest-hitch, as shown. 